I've had the watch for a little over a week and it works great so far. It tracks my steps and the calories I burn during certain workouts. It also tracks my heart rate which I love. I really like that it'll give me notifications when someone texts or calls me(although you can't text back on the watch). I really like that it tracks the amount of hours I slept and whether I was in deep or light sleep or awake(awake as in when u get up such as going to the bathroom or getting a drink of water in the middle of the night). Overall just a really great watch with a really great battery. If you're considering getting it, don't be shy make the purchase!